32 lines
1.8 KiB
Markdown
32 lines
1.8 KiB
Markdown
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---
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title: Firebase Cloud Messaging
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---
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# Firebase Cloud Messaging
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Firebase Cloud Messaging is a free service to send Notifications to your app. Firebase Cloud Messaging or **FCM** is used to send notifications to your app from either the Firebase Console or using your own server.
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FCM can also carry payload or data messages along with Notification Messages. These data messages can be used as parameters to a functions which can then perform an action like check for updates from your server, make changes to shared preferences, etc to name a few possibilities.
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FCM is a very powerful tool in user engagement and user retention.
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# Setup Firebase Cloud Messaging in Android Studio
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1. If you haven't already, [add Firebase to your Android project](https://firebase.google.com/docs/android/setup).
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2. Add the following line to the build.gradle file (App level)
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`implementation 'com.google.firebase:firebase-messaging:17.3.3'`
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Always check if there is a new version available i.e. 17.3.+
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3. Add the following code to the Android App Manifest
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`<service android:name=".java.MyFirebaseMessagingService"> `
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` <intent-filter> `
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`<action android:name="com.google.firebase.MESSAGING_EVENT" /> `
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`</intent-filter> `
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`</service>`
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4. Create a Java File named **MyFirebaseMessagingService** with the contents similar to [this file](https://raw.githubusercontent.com/firebase/quickstart-android/ed84b6e96933754d2d376edb761ab641fed312c1/messaging/app/src/main/java/com/google/firebase/quickstart/fcm/java/MyFirebaseMessagingService.java)
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And that's it. You can now use the Firebase console to receive messages sent to the app.
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# Related Courses
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- [Udacity's Firebase in a Weekend](https://classroom.udacity.com/courses/ud0352)
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- [Firebase Codelab by Google](https://codelabs.developers.google.com/codelabs/firebase-android/#0)
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